TO MEASURE THE OPENING. 1ST, #1, MEASURE THE WIDTH, AT THE TOP OF THE OPENING AND THEN AT THE BOTTOM OF THE OPENING.2ND, MEASURE THE HEIGHT, ON THE LEFT SIDE AND THEN ON THE RIGHT SIDE. ALSO,MEASURE THE CENTER. THEN AS # 2 SHOWS YOU NEED TO MEASURE FROM THE EDGE OF THE JAMB TO THE WALL. ON THE RIGHT SIDE AND ON THE LEFT SIDE.YOU NEED A MINIMUM OF 4 1/2" FOR THE TRACKS AND BRACKETS TO ATTACH TO THE WALLS.NOW YOU NEED TO MEASURE THE HEADROOM #3. FROM THE FINISHED HEAD JAMB TO THE CEILING. FOR A STANDARD INSTALLATION YOU NEED 13" ABOVE THE FINISHED HEAD JAMB.THERE IS OTHER (LOW HEADROOM HARDWARE) YOU CAN USE IF YOU ARE A LITTLE SHORT OF HEADROOM. YOU CAN SEE EXAMPLES OF THIS HARDWARE UNDER SPECIAL HARDWARE ON THE MENU BAR.LAST BUT NOT LEAST. FROM THE FRONT OF THE GARAGE TO THE BACK OF THE GARAGE. (BACKROOM) YOU NEED CLEAR ABOUT 12 OR 13 FEET FOR THE TRACKS AND THE GARAGE DOOR OPENER. THAT SHOULD DO IT . IF YOU HAVE ANY QUESTIONS. PLEASE GIVE US A CALL AND WE WILL TRY TO HELP YOU OUT.

IN SOME HOMES. YOU HAVE TO FRAME THE OPENING TO ACCEPT A NEW GARAGE DOOR. THIS IS NORMALLY HOW WE DO IT.FROM THE FLOOR UP ABOUT 8', WE ATTACH TO THE EXISTING JAMBS ON THE FLAT, A 2X6ON EACH SIDE. ACROSS THE HEADER WE ATTACH A 2X2 OR A2X4 OR A2X6 DEPENDING ON WHAT IT CALLS FOR.ALSO, A BLOCK IN THE CENTER FOR THE SPRING MOUNT AND THE GARAGE DOOR OPENER FRONT BRACKET TO ATTACH TO. SOMETIMES WE GO FROM END TO END WITH A FULL 2X10 OR 2X8 FOR (LOW HEADROOM) HARDWARE.WE DO THIS FRAMING FOR A FEW REASONS. ONE THERE IS NOT A SOLID SURFACE TO ATTACH ALL THE HARDWARE TO, AND OR, THE OPENING ON THE INSIDE IS NOT FLUSH. ALL THE INSIDE SURFACES OF THE GARAGE DOOR FRAME HAVE TO BE FLUSH.THERE ARE PICTURES OF THIS IN SPECIAL HARDWARE ON THE MENU BAR,FOR YOU TO SEE. WE HOPE THIS IS HELPFUL TO YOU. AS ALWAYS PLEASE GIVE US A CALL IF YOU HAVE ANY QUESTIONS.